RGV mid end bog

[mad_max]

Hi, I have a RGV150 which I use as a commuter but is actually quite fun to ride.
It has good low end power and mint in powerband but just before powerband it bogs for a bit and then hits. Its very annoying if am in mid rpm and give it gas and it does nothing untill it struggles into powerband.

I have taken airbox cover off for a ride and its doesnt do it but is deafening.

Do you think its and air problem or could it be something else?
It so is there a way I can stop it without being extremely loud? (not good making so much noise as people laugh when they see its a 150 )

Thanks

[blackdog]

how an and end be in the middle?

[mad_max]

Haha. Lets just say mid rane then. Happy now?

[sugilite:Me]

Dirty air filter?

[mad_max]

Its pretty clean, Gave it a bit of a clean too. Ill get a new 1 for it tomorrow and see what happens